345965617 has 2 divisors, whose sum is σ = 345965618. Its totient is φ = 345965616.

The previous prime is 345965603. The next prime is 345965647. The reversal of 345965617 is 716569543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210569121 + 135396496 = 14511^2 + 11636^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345965617 is a prime.

It is not a weakly prime, because it can be changed into another prime (345965647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172982808 + 172982809.

It is an arithmetic number, because the mean of its divisors is an integer number (172982809).

Almost surely, 2^345965617 is an apocalyptic number.

It is an amenable number.

345965617 is a deficient number, since it is larger than the sum of its proper divisors (1).

345965617 is an equidigital number, since it uses as much as digits as its factorization.

345965617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 46.

The square root of 345965617 is about 18600.1509940108. The cubic root of 345965617 is about 702.0116399993.

The spelling of 345965617 in words is "three hundred forty-five million, nine hundred sixty-five thousand, six hundred seventeen".